CPC Main Group Additional Only
F01N 2570/00 Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
12 direct subcodes
Child Classifications
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- F01N 2570/02 Lead
- F01N 2570/04 Sulfur or sulfur oxides
- F01N 2570/06 Zinc
- F01N 2570/08 Phosphorus
- F01N 2570/10 Carbon or carbon oxides
- F01N 2570/12 Hydrocarbons
- F01N 2570/14 Nitrogen oxides
- F01N 2570/16 Oxygen
- F01N 2570/18 Ammonia
- F01N 2570/20 Formaldehyde
- F01N 2570/22 Water or humidity
- F01N 2570/24 Hydrogen sulfide (H2S)
Top Applicants
Top 10 applicants by patent filingsfor class F01, 2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 9,989
- UNITED TECHNOLOGIES CORPORATION (UTC) US 8,110
- SAFRAN AIRCRAFT ENGINES FR 6,248
- HYUNDAI MOTOR COMPANY KR 4,530
- SIEMENS DE 4,461
- FORD GLOBAL TECHNOLOGIES US 4,029
- RAYTHEON TECHNOLOGIES CORPORATION US 3,947
- TOYOTA MOTOR CORPORATION JP 3,734
- GE (GENERAL ELECTRIC COMPANY) 3,415
- SCHAEFFLER TECHNOLOGIES & COMPANY DE 3,063